| (19) |
 |
|
(11) |
EP 2 071 321 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
09.09.2009 Bulletin 2009/37 |
| (43) |
Date of publication A2: |
|
17.06.2009 Bulletin 2009/25 |
| (22) |
Date of filing: 12.12.2008 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL
PT RO SE SI SK TR |
|
Designated Extension States: |
|
AL BA MK RS |
| (30) |
Priority: |
13.12.2007 JP 2007322636
|
| (71) |
Applicant: Fujifilm Corporation |
|
Tokyo 106-0031 (JP) |
|
| (72) |
Inventor: |
|
- Yamashita, Seiji
Ashigarakami-gun,
Kanagawa (JP)
|
| (74) |
Representative: HOFFMANN EITLE |
|
Patent- und Rechtsanwälte
Arabellastrasse 4
81925 München
81925 München (DE) |
|
| |
|
| (54) |
Surface plasmon resonance biosensor |
(57) The present invention provides a biosensor for detecting the interaction of substances
on a substrate based on surface plasmon resonance, the substrate having a metal film
including approximately 90% by mol or more and less than approximately 99.95% by mol
of Ag (silver) as a first metal element, and approximately 0.05% by mol or more and
less than approximately 10% by mol of at lease one of Au (gold), Pt (platinum), Cu
(copper), Bi (bismuth), Nd (neodymium), Ti (titanium) or Sb (antimony) as a second
metal element.